/* * Copyright (C) 2013 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.inputmethod.latin; import android.content.Context; import android.util.Log; import com.android.inputmethod.latin.makedict.DictEncoder; import com.android.inputmethod.latin.makedict.UnsupportedFormatException; import com.android.inputmethod.latin.makedict.Ver3DictEncoder; import java.io.File; import java.io.IOException; // TODO: Quit extending Dictionary after implementing dynamic binary dictionary. abstract public class AbstractDictionaryWriter extends Dictionary { /** Used for Log actions from this class */ private static final String TAG = AbstractDictionaryWriter.class.getSimpleName(); private final Context mContext; public AbstractDictionaryWriter(final Context context, final String dictType) { super(dictType); mContext = context; } abstract public void clear(); abstract public void addUnigramWord(final String word, final String shortcutTarget, final int frequency, final boolean isNotAWord); // TODO: Remove lastModifiedTime after making binary dictionary support forgetting curve. abstract public void addBigramWords(final String word0, final String word1, final int frequency, final boolean isValid, final long lastModifiedTime); abstract public void removeBigramWords(final String word0, final String word1); abstract protected void writeDictionary(final DictEncoder dictEncoder) throws IOException, UnsupportedFormatException; public void write(final String fileName) { final String tempFileName = fileName + ".temp"; final File file = new File(mContext.getFilesDir(), fileName); final File tempFile = new File(mContext.getFilesDir(), tempFileName); try { final DictEncoder dictEncoder = new Ver3DictEncoder(file); writeDictionary(dictEncoder); tempFile.renameTo(file); } catch (IOException e) { Log.e(TAG, "IO exception while writing file", e); } catch (UnsupportedFormatException e) { Log.e(TAG, "Unsupported format", e); } } }